Tesch, Andreas and Pippan, Reinhard and Trautmann, Karl-Heinz and Döker, Hubert (2006) Short Crack Growth in Al 6013-T6. In: Fatigue 2006, Proceedings 9th International Fatigue Congress May 14-19, 2006 Atlanta , Georgia, USA. Elsevier Ltd., GB. Fatigue 2006, 9th International Fatigue Congress, 2006-05-14 - 2006-05-19, Atlanta, Georgia, USA.
Full text not available from this repository.
The fatigue crack growth behaviour of short corner cracks in the Aluminium alloy Al 6013-T6 was investigated. The aim was to determine the crack growth rates of small corner cracks at a stress ratio of R = 0,1, R = 0,7 and R = 0,8 and to find a possibility to predict these crack growth rates from fatigue crack growth curves determined for long cracks. Corner cracks were introduced into M(T)-specimens at one side of a hole (Ø = 4.8 mm) by compression loads (R=20). The precracks were smaller than 100µm (notch + precrack). A completely new method was used to cut very small notches (10 – 50µm) into the specimens with a Focussed Ion Beam. The results of the fatigue crack growth tests with short corner cracks were compared with the long fatigue crack growth test data. The short cracks grew at K values below the threshold for long cracks at the same stress ratio. They also grew faster than long cracks at the same K-values and the same stress ratios. A model was created on the basis of constant Kmax-tests on long cracks that predicts the short crack growth behaviour very well.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Short Crack Growth in Al 6013-T6|
|Journal or Publication Title:||Fatigue 2006, Proceedings 9th International Fatigue Congress May 14-19, 2006 Atlanta , Georgia, USA|
|In ISI Web of Science:||No|
|Publisher:||Elsevier Ltd., GB|
|Keywords:||fatigue crack growth, long cracks, short corner cracks, focussed ion beam, constant Kmax-tests, prediction model, threshold, aluminium alloys|
|Event Title:||Fatigue 2006, 9th International Fatigue Congress|
|Event Location:||Atlanta, Georgia, USA|
|Event Type:||international Conference|
|Event Dates:||2006-05-14 - 2006-05-19|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Structures & Materials|
|Institutes and Institutions:||Institute of Materials Research > Mechanical Testing of Materials|
|Deposited By:||Dr.-Ing. Hubert Döker|
|Deposited On:||12 Dec 2006|
|Last Modified:||14 Jan 2010 23:57|
Repository Staff Only: item control page